Z202882-0U
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06131
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Installation Guide
Pressure
PW Series
TM
3. Connect tubing to the high and low ports on the PW.
WET DIFFERENTIAL PRESSURE
Low
Port
High
Port
PSID
PSIG
4. Connect the other ends of the tubing to a pipe or duct, across the pump, filter, or other pressure differential.
Notes
During operation, the LCD shows two pressure values. The value adjacent to the PSID label shows the differential pressure, while
the value adjacent to the PSIG label shows the high port gauge pressure. The gauge pressure value is read from the high port if
JP7 is in the Normal position. If this jumper is in the Port Swap position, the PSIG value is read from the low port, and the value is
usually a negative number.
This product uses a half-wave rectifier power supply. If the installer is using a transformer to power the device, do not use the
same transformer to power other devices utilizing non-isolated full-wave power supplies.
Optional: Connect the Zero terminals to the digital output (contact closure) of the control system. The Zero input is for dry-contact
only. Do not apply voltage to the Zero terminals.
To use the auto zero function, press and hold the Zero button for 2 seconds or provide contact closure on the auxiliary ‘Remote
Zero’ terminal to reset the output to zero pressure. To protect the device from accidental zeroing, this feature is only enabled when
the detected pressure is within 5% of factory calibration.
Installation
(cont.)
LED Blink Codes
LED Color
Status
Solid Green
Normal operation.
Flashing Green
Low > High; use port swap jumper or bidirectional mode.
Solid Red
Differential pressure is too high; select a higher pressure range.
Flashing Red
Gauge pressure over sensor range; reduce line pressure or replace with a higher range device.
